I utilized coupled gas chromatography-electroantennography to detect electrical responses of the antennae of the southern pine beetle, Dendroctonus frontalis Zimmermann (SPB), to compounds in crude mixtures of volatiles derived from the beetles and their host trees. As expected, known pheromones of SPB generated especially strong antennal responses, while the major monoterpenes of host trees generated considerably weaker responses. In addition, a substantial number of previously unreported compounds that possess modest activity with SPB antennae were identified, most notably, various oxygenated monoterpenes associated with fully-colonized or decaying hosts. The ecological and practical significance of the findings is discussed.
Species 1: Coleoptera Scolytidae Dendroctonus frontalis (southern pine beetle)
Keywords: antennogram
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